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threeten-extra是一個基于java8的java.time的擴展包，本文簡單介紹一下threeten-extra的使用實例。

maven

<dependency><groupId>org.threeten</groupId><artifactId>threeten-extra</artifactId><version>1.2</version></dependency>

實例

獲取日期的年、月、周、天、時、分

LocalDateTime first = LocalDateTime.parse("2017-07-03T10:15:30", DateTimeFormatter.ISO_DATE_TIME); LocalDateTime second = LocalDateTime.parse("2011-08-08T12:15:10", DateTimeFormatter.ISO_DATE_TIME);@Testpublic void testYears(){System.out.println(Years.between(first,second));}@Testpublic void testMonths(){System.out.println(Months.between(first,second));}@Testpublic void testWeeks(){System.out.println(Weeks.between(first,second));}@Testpublic void testDays(){System.out.println(Days.between(LocalDate.parse("2017-08-01"),LocalDate.parse("2017-08-03")));}@Testpublic void testHours(){System.out.println(Hours.between(first,second).getAmount());}@Testpublic void testMinutes(){System.out.println(Minutes.between(first,second));}@Testpublic void testSeconds(){System.out.println(Seconds.between(first,second));}

獲取am或pm時間

@Testpublic void testAmPm(){System.out.println(AmPm.from(LocalTime.now()));}

獲取月或年中的天數

@Testpublic void testDayOfMonth(){System.out.println(DayOfMonth.from(LocalDate.now()));}@Testpublic void testDayOfYear(){System.out.println(DayOfYear.from(LocalDate.now()));}

獲取上/下一工作日

@Testpublic void testTemporals(){System.out.println(first.with(Temporals.previousWorkingDay()));System.out.println(first.with(Temporals.nextWorkingDay()));}

獲取時間距離

@Testpublic void testDuration(){System.out.println(PeriodDuration.between(first,second).getPeriod());System.out.println(PeriodDuration.between(first,second).getDuration());}

doc

• threeten-extra

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